Thanks for sharing your experience with your modified tensioner. So your engine has never vibrated that bolt loose? I will be close to stock tension hopefully, so being too tight when the engine is hot should not be a problem. I will try out your suggestion on testing belt tension by the upper idler bearing between the intake camshafts.With a new timing belt, I have to tighten slightly after the first 300 km and then the tension remains perfect over time.
Always check the voltage with the engine cold
The idler cam between the camshafts is a good indication of the right tension, if the idler cam turns with your finger you have to tight more
This mechanical tension system is really good because it is easy to tension the belt to the desired tension.
I start my third timing belt with this tensioner modified and it's always the best for me